Refactor code structure and optimize performance across multiple modules

src/Notifier/StellaOps.Notifier/StellaOps.Notifier.Tests/AttestationTemplateSeederTests.cs

@@ -4,10 +4,12 @@ using StellaOps.Notifier.Tests.Support;
 using StellaOps.Notifier.WebService.Setup;
 using Xunit;
 
+using StellaOps.TestKit;
 namespace StellaOps.Notifier.Tests;
 
 public sealed class AttestationTemplateSeederTests
 {
+    [Trait("Category", TestCategories.Unit)]
     [Fact(Skip = "Offline seeding disabled in in-memory mode")]
     public async Task SeedTemplates_and_routing_load_from_offline_bundle()
     {